Dvd Drive Does Not Load Dvd Automatically

When i used to load a dvd into the dvd drive it would load auto. for some reason it now does not and so i have to go into the program for the load dvd drive. i was told about two things to do, one of which was a powertoy for windows (tweak ui) and was also told about another one and i have forgotten it. that one i forgot was the actual one which fixed my dvd drive so when a dvd was placed in the drive it loaded automatically. the gentlemen i was dealing with in this regard has finally become fed up with me as this the second time i have now asked for advice and he did indeed fix the problem but it has happened again due to my brother who thinks he knows the computer world inside out but at least he had fun on my laptop.